%0 Journal Article
%T Sonochemicial Synthesis of AgSbTe2 Thermoelectric Compounds
%A XU Jing-Jing
%A DU Bao-Li
%A ZHANG Wen-Hao
%A TANG Xin-Feng
%J 无机材料学报
%D 2010
%I Science Press
%R 10.3724/sp.j.1077.2010.00593
%X Single-phase AgSbTe2 powder was synthesized by sonochemicial method combining with deoxidizing heat-treatment. The influences of heat-treatment temperature, time and the initial ratio of starting reactants on the phases of the final products were investigated. Near single-phase AgSbTe2 ternary powder can be obtained after 2h heat treatment under 500 Degrees, and single-phase AgSbTe2 can be obtained by changing the initio ratio of the starting reactants. Microstructure analysis shows that nanodots with dimension of 20-50nm are uniformly distributed on the surface of the as-prepared powders with the average size of about 10m. A dimensionless thermoelectric figure of merit ZT = 1.14 is obtained at 570K for the sample with single phase.
%K AgSbTe2
%K sonochemicial method
%K heat treament
%K thermoelectric materials
%U http://www.jim.org.cn/fileup/PDF/20100607.pdf